J.C. Wang
,
Z.M. Zhang
,
Y.L. Lu
,
G.S. Song and G.C. Yang (State Key Laboratory of Solidification Processing
,
Northwestern Polytechnical University
,
Xi'an 710072
,
China)
金属学报(英文版)
To improve the damping capacities of metals and alloys, the microstructures and damping capacities of ZA27 alloy modified by Zr were studied, and the damping capacities at room tempemture were measured by using cantilever beam techniques. The experiment results show that Zr can refine the Al-rich primary phase and improve the damping Capacities saliently. Compared with the un-modified one, the damping capacity of ZA27 alloy modified by 0.3wt%Zr received 90 percent increment. The high damping capacities are attributed primarily to grain ablement and the increasing of phase interfaces.
关键词:
ZA27 alloy
,
null
,
null
,
null
J.C. Wang
,
Z.M. Zhang and G.C. Yang State Key Labortory of Solidification Processing
,
Northwestern Polytecnical University
,
Xi'an 710072
,
China
金属学报(英文版)
Taking three kinds of metal-matrix composites (MMCS) (laminated composites, fibers reinforced MMCs, and particle-reinforced MMCs)as examples, the recent develop ments in modeling the damping behaviors of MMCs are extensively reviewed. The damping mechanisms of different kinds of composites are quite different, and therefore, the analytical of numerical methods for different kinds of MMCs are also quite different. This will he shown in this extensive review. Furthermore, the directions of future developments in modeling the damping behavior of MMCs are also presented.
关键词:
modeling
,
null
,
null
